package com.ververica.cdc.guass.sink.jdbc.derby.testutil;

import com.ververica.cdc.guass.sink.jdbc.testutils.DatabaseExtension;
import com.ververica.cdc.guass.sink.jdbc.testutils.DatabaseMetadata;
import com.ververica.cdc.guass.sink.jdbc.testutils.DatabaseResource;
import com.ververica.cdc.guass.sink.jdbc.testutils.resources.MemoryResource;
import org.apache.flink.util.FlinkRuntimeException;

import java.io.OutputStream;
import java.sql.DriverManager;
import java.sql.SQLException;

/** Derby database for testing. */
public class DerbyDatabase extends DatabaseExtension {

    @SuppressWarnings("unused") // used in string constant in prepareDatabase
    public static final OutputStream DEV_NULL =
            new OutputStream() {
                @Override
                public void write(int b) {}
            };

    private static final DerbyMetadata metadata = new DerbyMetadata("test;create=true");

    public static DerbyMetadata getMetadata() {
        return metadata;
    }

    @Override
    protected DatabaseMetadata getMetadataDB() {
        return getMetadata();
    }

    @Override
    protected DatabaseResource getResource() {
        return new MemoryResource() {
            @Override
            public void start() {
                try {
                    System.setProperty(
                            "derby.stream.error.field",
                            DerbyDatabase.class.getCanonicalName() + ".DEV_NULL");
                    Class.forName(metadata.getDriverClass());
                    DriverManager.getConnection(
                                    String.format("%s;create=true", metadata.getJdbcUrl()))
                            .close();
                } catch (Exception e) {
                    throw new FlinkRuntimeException(e);
                }
            }

            @Override
            public void stop() {
                try {
                    DriverManager.getConnection(
                                    String.format("%s;shutdown=true", metadata.getJdbcUrl()))
                            .close();
                } catch (SQLException ignored) {
                }
            }
        };
    }
}
